Say goodbye to cheap, flimsy adapters and say hello to the SIMMOUNT EF Conversion Kit! 


Designed for precision, functionality, and durability, our EF Conversion kits will allow you to make the most out of your existing collection of Leica R lenses.  The SIMMOUNT System allows you to mount native Leica R lenses to any Canon EF/EF-S-mount camera or EF mounted motion picture camera.  State of the art CNC construction ensures a tight fit, while maintaining infinity focus and proper functionality between camera and lens.  The SIMMOUNT System is made of high quality air craft grade aluminum, anodized in matte black to reduce glare and reflections, and backed by a lifetime replacement warranty.


Installation is as simple as 1-2-3:


1:  Use a soldering iron to apply heat to the top of the screws on the native Leica R lens mount.  Hold the soldering iron on each screw for 3-5 minutes to dissolve the glue applied to the screw from the factory.  We strongly recommend this procedure to avoid stripping the screws when removing.  Remove the screws.


2:  Once the screws are removed, simply place the SIMMOUNT directly on top of the native mount.  Make sure the SIMMOUNT logo aligns to the top of the lens and all the screw holes are matched.


3:  Use the supplied screws to tighten down the SIMMOUNT.  Do not overtighten.




Lens Selection
    • Leica R to EF Hard Conversion
    • Solid Air Craft Grade Aluminum Construction
    • Simple, Easy Installation
    • Lifetime Replacement Warranty